Highlight code using highlight.js-JS Tutorial-php.cn

Home

Web Front-end

JS Tutorial

Highlight code using highlight.js

巴扎黑

Aug 21, 2017 am 10:39 AM

javascriptHighlight

This article mainly introduces js to use highlight.js to highlight your code. It is of great practical value. Friends who need it can refer to it.

When browsing other people’s blogs, you see other people’s codes. The example uses highlighted syntax. Whether it is java, js, php, etc., the keywords will be automatically highlighted.

So I wrote a blog a few days ago. When I encountered code, I naturally thought of how beautiful other people’s websites are, blah blah blah.

The formal tinkering began.

Go to other websites to check before tinkering. Here is the effect of pasting the simplified book:

The keywords, method names, and strings are all in different colors. Although the code is not highlighted very well, Not bad. So I went to look at the document and found this:

<pre class="hljs javascript"><code class="javascript"><span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">getPersonInfo</span>(<span class="hljs-params">name,age,sex</span>) </span>{
  <span class="hljs-built_in">console</span>.log(name+age+sex);
}
<span class="hljs-comment">//要是我这样传,name就成了18，age成了王二了。</span>
getPersonInfo(<span class="hljs-string">&#39;18&#39;</span>,<span class="hljs-string">&#39;王二&#39;</span>,<span class="hljs-string">&#39;男&#39;</span>);
<span class="hljs-comment">//所以可以这样写</span>
<span class="hljs-function"><span class="hljs-keyword">function</span> <span class="hljs-title">getPersonInfo</span>(<span class="hljs-params">args</span>)</span>{
  <span class="hljs-built_in">console</span>.log(args.name+args.age+args.sex);
}
getPersonInfo({name:<span class="hljs-string">&#39;王二&#39;</span>,age<span class="hljs-string">&#39;18&#39;</span>,sex:<span class="hljs-string">&#39;男&#39;</span>});</code>

hljs? ? This is definitely it. So we found our protagonist: highlight.js.

highlight.js official website

The usage of highlightjs can be directly viewed on the official website

Here I mainly write down what pitfalls I stepped on during use, and the final results Solution.

1. I can’t eat hot tofu in a hurry. The most difficult thing is the beginning.

According to the doc on the official website, you only need three lines of code to use it. It is very convenient. You can I wrote a small demo and tested it. Still very effective.

<link href="http://cdn.bootcss.com/highlight.js/8.0/styles/monokai_sublime.min.css" rel="external nofollow" rel="stylesheet"> 
<script src="http://cdn.bootcss.com/highlight.js/8.0/highlight.min.js"></script> 
<script >hljs.initHighlightingOnLoad();</script>

The cdn provided by bootstarp is used here. You can access the cdn directly through the above connection and select the required version. It's that simple.

This color scheme is not very good-looking either. If you want good-looking colors, you can refer directly to the official website. https://highlightjs.org/static/demo/

2. If it is easy to use, it must be applied in actual development.

I am very happy that it can be applied so easily. , so it was applied to the project.

As a result, I encountered *trouble....

The project uses require.js to load js, and the entire application uses the angular framework.

If you write it directly like this, it obviously does not comply with the specification, so you will change the code and use require.js to load highlight.js.

Add highlight path configuration in require.config

&#39;highlight&#39;:&#39;http://cdn.bootcss.com/highlight.js/8.0/highlight.min&#39;,

Execute hljs.initHighlightingOnLoad();

## in the callback function of require

require(loadList, function ($, angular) {
    $(function () {
      angular.bootstrap(document, [&#39;blogApp&#39;]);
    });
    hljs.initHighlightingOnLoad();
  });

css can still be loaded through link, or you can use less's @import to load it. Because the project uses less, I chose @import

@import "/lib/highlight/styles/tomorrow-night-eighties.css";

Then write a code test on the html page:

<body>
    <p ng-include="&#39;template/header.html&#39;"></p>
    <p>
      <pre class="brush:php;toolbar:false">
        <code class="lang-javascript">
    function init(){
      $scope.req.getArticle();
      $(&#39;pre code&#39;).each(function(i, block) {
        hljs.highlightBlock(block);
      });
    }
        </code>

The above is the detailed content of Highlight code using highlight.js. For more information, please follow other related articles on the PHP Chinese website!

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

From Websites to Apps: The Diverse Applications of JavaScriptApr 22, 2025 am 12:02 AM

JavaScript is widely used in websites, mobile applications, desktop applications and server-side programming. 1) In website development, JavaScript operates DOM together with HTML and CSS to achieve dynamic effects and supports frameworks such as jQuery and React. 2) Through ReactNative and Ionic, JavaScript is used to develop cross-platform mobile applications. 3) The Electron framework enables JavaScript to build desktop applications. 4) Node.js allows JavaScript to run on the server side and supports high concurrent requests.

Python vs. JavaScript: Use Cases and Applications ComparedApr 21, 2025 am 12:01 AM

Python is more suitable for data science and automation, while JavaScript is more suitable for front-end and full-stack development. 1. Python performs well in data science and machine learning, using libraries such as NumPy and Pandas for data processing and modeling. 2. Python is concise and efficient in automation and scripting. 3. JavaScript is indispensable in front-end development and is used to build dynamic web pages and single-page applications. 4. JavaScript plays a role in back-end development through Node.js and supports full-stack development.

The Role of C/C in JavaScript Interpreters and CompilersApr 20, 2025 am 12:01 AM

C and C play a vital role in the JavaScript engine, mainly used to implement interpreters and JIT compilers. 1) C is used to parse JavaScript source code and generate an abstract syntax tree. 2) C is responsible for generating and executing bytecode. 3) C implements the JIT compiler, optimizes and compiles hot-spot code at runtime, and significantly improves the execution efficiency of JavaScript.

JavaScript in Action: Real-World Examples and ProjectsApr 19, 2025 am 12:13 AM

JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.

JavaScript and the Web: Core Functionality and Use CasesApr 18, 2025 am 12:19 AM

The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.

Understanding the JavaScript Engine: Implementation DetailsApr 17, 2025 am 12:05 AM

Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.

Python vs. JavaScript: The Learning Curve and Ease of UseApr 16, 2025 am 12:12 AM

Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.

Python vs. JavaScript: Community, Libraries, and ResourcesApr 15, 2025 am 12:16 AM

Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.

See all articles